Specification: Voltage:AC220 V Working frequency:433 M Hz Working method:selflock, interlock & delay control Feature: The volume is small & the performance is stable & reliable, high receive sensitivity. Use Learning coding, stable & reliable. You can turn on or turn off the receiver with transmitter (remote control) from any place within a reliable distance. With a keychain on the remote, easy to carry. Easy to install & match the transmitter. Mainly used in remote control socket, lamp, electrical appliances, electrical, access control, automotive & other equipment. How to program:1. First select the output switch or delay control mode & then learn the remote control.2. Select working method: Press & hold on the learning button, after 2s, learning indicator light on, if you release means you choice output switch; if you still hold after 3s, learning indicator flash once, now release means you choice delay switch mode.3. Remote control learning method: Press the learning button, & after 2s, the indicator light on, release the button, press the remote control key that you want learn, the indicator flashes 3 times, means you learn the output switch successfully. Press the learning button, & after 2s, the indicator light on, & then will flash once, now release the button, press the remote control key that you want learn, the indicator flashes 3 times means learn delay switch successfully.4. Reset: Press & hold on the learning button, after 2s, learning indicator light on, an